How to exclude full index path from the routes

Hello All,
I have made a post in Facebook: "Yii2 PHP framework" group "/yii2talk/permalink/2037978059776059/".
I understood that it's place is here, by the moderator announcement. So, I ask you here too. If needed - I'll remove the post in Facebook.

I have read many tutorials, but I cannot find one routing configuration.
I have a question about the routes in Yii2.
I'm interested in how to disable the "<controller>/index" pattern from the below passage, but keep only "<controller>" pointing to "<controller>/index".
Please, advise me.
File: "/config/web.php".

Hi softark,
This is not, what I have looked for. I found my answer, but now I have issues with the main controller. I'll type here the result, when I'm done.
Meanwhile, can you please have a look at my next Yii forum question: https://www.yiiframe...__1#entry316741